Indicator



Jan. 17, 1933. A, L uLKl 1,894,697

INDICATOR Filed June l2. 1929 k-T--1 I .ihren/ow I u/x/f Patented Jen.17, 1933 I 1,894,697

UNITED ysfraras PATENT ori-Ica ALEXANDER LULKI, E BERLIN, GERIAIIYINDICATOR `Application led .Tune 12, 1929, Serial No. 370,822, and inGermany August l, 19118.v The invention relates to an indicator insignalneed simply be connected in parallel tended for use 1n conjunction withswitches, With the switch. buttons, fuses and similar apparatus servingThe invention will now be described more to distribute electric currenfully by way of example with reference tothe The object of the presentinvention is to accompanying drawing, in which 55 provide a device ofthis kind which is in conig. 1 is a general view of the light signalnection with the light signal and which may arrangement, be used inconjunction with existing switches, Fig. 2 being a similar view rotatedto the buttons, etc., without necessity for making extent of 90, theswitch itself beingshown any alterationsv to the switch or to theele`cin dotted lines. I tric leads. As well known, electric appara- Fig.3 is the general view of a modified tus are standardized to such extentthat alform of embodiment, and terations thereof for the purpose offitting a Fig. 4 a similar view to Fig. 3 likewise rolight signalarrangement present considertated by 90. able diliiculties, or may bequite impossible at Referring now to the drawing, l is a base 65 allunder certain regulations issued by the plate consisting of a suitableinsulating maparticular authorities. terial .and having at the edge anabutment According to the invention the arrange- 2. On the abutment 2 isprovided an addiment is of such nature that the signal, i. e., tionalelevation 3, in which is situated the zo the lamp, is situated at the ede or in the mountin for the lamp 4.- This lampis pref- 70 vicinity ofthe edge of a base p ate, and toerably o the gas discharge typeconnected ether therewith constitutes an entirely 'inacross the circuitin such manner that the dependent indicator which, when the switch sameburns when the switch is moved on to is secured to the wall may bedisposed beof. The leads passing to the lamp 4 are tween the wall andthe rear part of the switch. designated b 5 and pass out of the baseplate 75 The plate is preferably furnished with an 1 at a suita le pointto be connected with edge abutment serving to support the mounttheswitch. The edge abutment 2 also serves ing. This edge abutment may atthe same to support a resistance 6, which is necessary time also beemployed' to hold a resistance for a g ow lamp. In place of a lamp ofthe 3 which is necessary for the lamp. latter type it is naturally alsopossible to 80 In a modified form of embodiment the edge em loy anyother source of light. of the plate may be furnished with a hollow ig. 2shows the simple method of applicabeading, in which the lamp is situatedbehind tion of the light signal arrangement 1n cona break inthe beadingcovered by a window. junction with a switch 7 of conventional For thesake of better comprehension the form. The base plate 1 is clampedbetween 85 invention will be described in the followin the wall 8 andthe switch 7 by the usual in its application to a switch, although it wil switch securing screws. The lamp 4 in this be per ectlyy understoodthat no limitation arrangement 1s preferably situated immedi- 4whatsoever is made in this direction, and that ately above the switch 7so that in the dark- 40 the invention is equally a plicable to butnessthe part of the wall on which the switch 9 tons, fuses and other similhrparts serving is molmted ma be readily recognized. for switching orcontrolling electric circuits. In the form of embodiment according to Inthe arrangement accordingto the in- Figs. 3 and 4 the base plate 1 isfurnished vention it is possible to furnish every existwith a hollowbeading, the lamp being ing switch already positioned .on the wallmounted within the latter. The beading is 95 with a light signal byclamping the base broken for a certain distance, forming a plate withthe light si alj between the wall window through which the light of thelamp Aand the switch. In t e base plate are sitis able to pass. In thisform of embodiment uated the necessary leads for feeding the as shown 1nthe drawing the lampis situated signal with electric current, so thatthe light below. the switch 7, and in the samemanner .10

2 I neogeo:

as described above indicates the point of the wall at which the switchis mounted. The base plate 1 is secured in the same manner as in theprevious embodiment. l

The base plate maybe of any desired form, and thus for example may beconstructed in the form of a strip clamped between the switch and thewall. Or alternatively it is also possible to employ a number o stripsproceeding in different directions and if necessary connected with eachother.

Buttons, fuses, electric door openers and similar arrangements may beilluminated in the lsame manner. By the use of glow lamps it is possibleto employ the device as desired for all voltages, so that in accordance.with

the invention an independent unit is produced capablel of being employedwith existing switches or the like in the most simple manner withoutanypalteration whatever.

The holes shown in the plates, strips, etc. in the drawing enable theground plate or the like to be secured by the same screws employed forholding the switc As stated above, I do not limit myself to theparticular forms of embodiment shown, and various modifications may bemade without departin from the spirit of the invention as descri 4dabove and set forth in the ap ended claim.

at I claim as new and .desire to secure by Letters Patent is:

In an indicator, an electric wall switch a amp adapted to burn when thesaid switch is in the oi position, a base plate adapted to be disposedbetween the rear part of the said switch and the wall to which the saidswitch is secured, and an edge abutment on the said base lplate adaptedto receive the said lamp.

In testimony whereof I have affixed my signature.

ALEXANDER LULKI.

